Cyclorhipidion bodoanum (Reitter, 1913)

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I., 2020, A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China, ZooKeys 983, pp. 1-442 : 1

Cyclorhipidion bodoanum (Reitter, 1913) Fig. 40G, H, L

Xyleborus bodoanus Reitter, 1913: 82.

Cyclorhipidion bodoanum (Reitter): Bussler and Immler 2007: 5.

Xyleborus punctulatus Kurentzov, 1948: 52. Synonymy: Knížek 2011: 245.

Xyleborus californicus Wood, 1975b: 399. Synonymy: Knížek 2011: 245.

Xyleborus misatoensis Nobuchi, 1981a: 146. syn. nov.

Type material.

Holotype Xyleborus misatoensis (NIAES).

New records.

China: Fujian, Chong’an, Guidun, 1200 m, 7.v.1978, host: Cyclobalanopsis glauca [= Quercus glauca ] (NMNH, 1). Guizhou, Guiyang, Huaxi, 11.vi.2016, Y. Li, ex ethanol trap (MSUC, 1). Hong Kong, Tai Po Kau, vi.2017, J. Skelton (MSUC, 1). Jiangxi, Xunwu, Xingshan, 10.x.2018, Y. Li, ex Fagaceae log (MSUC, 1). S Yunnan, Xishuangbanna, 23 km NW Jinghong, vic. Na Ban village (NNNR), 22°10'N, 100°39'E, 700-1000 m, v-vii.2009, L. Meng (NKME, 4); as previous except: 25 km NW Jinghong, vic. Zhong Zhi Chang (NNNR), 22°11.08'N, 100°39.05'E, 780 m, rubber plantation, 6.iv.2009, L. Meng (NKME, 1); as previous except: 28 km NW Jinghong, vic. An Ma Xi Zhan (NNNR), 22°12'N, 100°38'E, 700 m, forest, 5.iv.2009, L. Meng (RABC, 3). Taiwan: Yilan Co., Fushan, v.2009, [no collector], ex sticky trap (RABC, 1). Vietnam: Bac Giang, Tay Yen Tu Nat. Res. 6 km SW Than Son, 21°10.83'N, 106°43.43'E, 200 m, 19-20.v.2015, A. Weigel (NKME, 1; RABC, 1).

Diagnosis.

1.7-2.2 mm long (mean = 2.03 mm; n = 4); 2.76-3.14 × as long as wide. This species is distinguished by the short, steep declivity that is approximately 25% of total elytral length, armed with large tubercles on interstriae 1 and 3, interstriae 2 always unarmed; posterolateral margins rounded; and declivital interstriae 1 and 2 setae uniseriate (Table 1 ).

Similar species.

This species is a part of a challenging species group consisting of C. distinguendum , C. inarmatum , C. pelliculosum , C. tenuigraphum and C. xeniolum (Table 1 ).

Distribution.

China (Fujian*, Heilongjiang, Hong Kong*, Guizhou*, Jiangxi*, Yunnan*), Japan, Laos, South & North Korea, Russia (Far East), Taiwan*, Thailand, Vietnam*. Introduced to Europe, USA (Wood 1975; Vandenberg et al. 2000; Kirkendall and Faccoli 2010; Gomez et al. 2018a).

Host plants.

Like a number of other species of Cyclorhipidion , the species has a clear preference for trees in the family Fagaceae , and most records are from Quercus , with rare attacks on Castanea ( Nobuchi 1981a, Bussler and Immler 2007). Also recorded from Pinus ( Pinaceae ) and Populus ( Salicaceae ) ( Lightle et al. 2007).

Remarks.

The holotype of Xyleborus misatoensis was compared to specimens of C. bodoanum from the United States and Asia. The specimens were found to be conspecific and X. misatoensis is here placed in synonymy.

McPherson et al. (2008) note that the species attacks Quercus previously attacked by pathogenic fungi, resulting in the spread of decay fungi, and increased tree mortality.

Figures

Figure 40. Dorsal, lateral and declivital view of Cyclorhipidion amasoides holotype, 4.2 mm (A, B, I), C. amputatum holotype, 5.0 mm (C, D, J), C. armiger lectotype, 2.6 - 3.3 mm (E, F, K), and C. bodoanum, 1.9 - 2.2 mm (G, H, L).